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Old Jul 10, 2012, 03:27 PM
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Help!
Uh, ESC motor-connectors?

So I bought 4 new ESCs for my quad. My motors and old ESCs was color-coded for ease of connection but the three connectors to the motor on the ESC are all red. How do I figure out which ESC-cable to connect to what motor-cable? The ESC is a Turnigy Plush 10A.
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Old Jul 10, 2012, 03:28 PM
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Doesn't matter. Connect them up. If the motor doesn't spin the direction you want, swap any two.
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Old Jul 10, 2012, 03:28 PM
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Just hook em up, spool up the motor and see in which direction it spins. Do this without a propeller. If it spins the wrong way, reverse two wires. Easy!
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Old Jul 10, 2012, 03:41 PM
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Oh ok, thanks. But why is there 3 wires? Positive, ground and signal? Negative for reverse spin?
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Old Jul 10, 2012, 03:44 PM
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Quote:
Originally Posted by Rakrul View Post
Oh ok, thanks. But why is there 3 wires? Positive, ground and signal? Negative for reverse spin?
No, magic 3 phase electricity.
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Old Jul 10, 2012, 03:54 PM
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Aha, so all I need is to find ground then. Thanks again.
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Old Jul 10, 2012, 04:17 PM
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No ground. Just hook the 3 wires up and like above if it spins backwards swap two of the wires to make it spin the other direction.
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Old Jul 10, 2012, 06:10 PM
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If you look down at the ESC, the wires, from left to right, Signal (usually with a yellow shrink tube on it), Postive Power (red shrink tube), and then Negative power (black shrink tube).
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Old Jul 10, 2012, 06:23 PM
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Quote:
Originally Posted by toymasta View Post
If you look down at the ESC, the wires, from left to right, Signal (usually with a yellow shrink tube on it), Postive Power (red shrink tube), and then Negative power (black shrink tube).
Thats not what the Op was asking. That's the servo signal cable.
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Old Jul 10, 2012, 07:47 PM
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The Netherlands, UT, Soest
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Quote:
Originally Posted by MankySteve View Post
Thats not what the Op was asking. That's the servo signal cable.
well, no he's talking about the motor/esc wires... but he's wrong..

Quote:
Originally Posted by toymasta View Post
If you look down at the ESC, the wires, from left to right, Signal (usually with a yellow shrink tube on it), Postive Power (red shrink tube), and then Negative power (black shrink tube).
short lesson on three phase motors..
three phase motors do not have dedicated negatives.

all three wires are positive to a (set of) wire winding(s).(poles)
each wire of these windings is connected on one side to esc and the other side to either:
all three wires are connected to eachother (star configuration)
or the end of one pole is connected to the esc wire of the other pole (delta configuration)



changing 2 wires makes the polarization work the other way around.

(trying to keep it simple)
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